. >> wednesday, president obama and mitt romney meet in the first presidential debate. the news our jim lehrer moderates. watch and engage with c-span including our live to be preachy at 7 p.m. eastern. the debate at night and post debate, your reaction, calls e-mails and tweets. fall live coverage on c-span, c-span radio and online at c-span.org. spent up next, white house officials in charge of cybersecurity speak about the growing concern over counterfeit computer parts and software. they spoke at the potomac institute on computer network threats posed by a foldable supply chain. this is about two hours. >> ladies and gentlemen, if i could have your attention, please. minus michael swetnam and on michael swetnam and ceo of the potomac institute for policy studies, and it's my distinct honor and courage to welcome you here today for a seminar on supply chain threat of cyber issue that we have been discussing in and around washington for quite some time. the potomac institute, for those of you have not been here before, is a science and technology not for profit policy